Laboratory Detection of Marijuana Use

Plasma delta-9-tetrahydrocannabinol concentrations and clinical effects after oral and intravenous administration and smoking

1980 • 459 citations

Do Plasma Concentrations of Δ⁹‐Tetrahydrocannabinol Reflect the Degree of Intoxication?

1981 • 158 citations

Quantitative measurement of Δ9-tetrahydrocannabinol and two major metabolites in physiological specimens using capillary column gas chromatography negative ion chemical ionization mass spectrometry

1983 • 126 citations

Marijuana and Driving in Real-Life Situations

1974 • 106 citations

Pharmacology of orally administered Δ⁹‐tetrahydrocannabinol

1973 • 102 citations

Persistence of urinary marijuana levels after supervised abstinence

1982 • 81 citations

Passive inhalation of marihuana smoke and urinary excretion of cannabinoids

1983 • 70 citations

Confirmation of a Tetrahydrocannabinol Metabolite in Urine by Gas Chromatography

1982 • 69 citations

Homogeneous enzyme immunoassay for cannabinoids in urine.

1978 • 69 citations

GC/MS assays for abused drugs in body fluids.

1980 • 60 citations

Passive inhalation of cannabis smoke

1984 • 55 citations

Analysis of the Major Metabolite of 9-Tetrahydrocannabinol in Urine II. A HPLC Procedure

1983 • 50 citations

EMIT Cannabinoid Assay: Confirmation by RIA and GC/MS

1981 • 47 citations

Problems of Mass Urine Screening for Misused Drugs

1984 • 42 citations

Amphetamine-haloperidol interactions on striatal and mesolimbic tyrosine hydroxylase activity and dopamine metabolism.

1980 • 39 citations

Teenage driving after using marijuana or drinking and traffic accident involvement

1982 • 37 citations

Picogram Analysis of Tetrahydrocannabinol and Application to Biological Fluids

1973 • 36 citations

Urinary metabolites of delta 1-tetrahydrocannabinol in man.

1982 • 35 citations

Confirmation of Cannabis Use by the Analysis of 9-Tetrahydrocannabinol Metabolites in Blood and Urine by Combined HPLC and RIA

1984 • 30 citations

Analysis of the Major Metabolite of 9-Tetrahydrocannabinol in Urine III. A GC/ECD Procedure

1984 • 30 citations

Comparison of gas chromatography mass spectrometry methods for the determination of Δ9-tetrahydrocannabinol in plasma

1978 • 28 citations

The Use of Marihuana, Ethanol, and Other Drugs Among Drivers Killed in Single-Vehicle Crashes

1983 • 28 citations

Semi-quantitative thin-layer mass-screening detection of 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic acid in human urine

1982 • 25 citations

Quantitation of cannabinoids in biological fluids by radioimmunoassay.

1976 • 19 citations

An EMIT Assay for Cannabinoid Metabolites in Urine

1982 • 18 citations

Urine Testing for Marijuana Use

1983 • 17 citations

An Evaluation of a Homogeneous Enzyme Immunoassay (EMIT) for Cannabinoid Detection in Biological Fluids

1982 • 17 citations

Further urinary metabolites of delta 1-tetrahydrocannabinol in man.

1982 • 17 citations

Marijuana metabolites in urine of man

1982 • 15 citations

Driving simulator studies of marijuana alone and in combination with alcohol

1983 • 10 citations

Duration of skills performance impairment

1981 • 7 citations

Significant Developments in Radioimmune Methods Applied to Delta 9 THC and its 9-Substituted Metabolites

1982 • 5 citations

Frequent marijuana use in adolescence.

1985 • 4 citations